Sea level rise is accelerating and could reach 26 inches (66 centimeters) by century's end, in line with United Nations estimates and enough to cause significant problems for coastal cities, a study said Monday. The past annual rate of sea level rise -- about three millimeters (0.1 inches) per year -- may more than triple to 10 millimeters per year by 2100, said the report in the Proceedings of the National Academy of Sciences (PNAS), a peer-reviewed US journal. The findings are "roughly in agreement with the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5) model projections," said the report, based on 25 years of satellite data. read moreDisclaimer: Chances are that this post was requested by an advertiser.